Polytec GmbH
510Patents
134Active
510Granted
50Portfolio score
Filing activity: May 11, 1972 → Aug 4, 2022 · 52 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4464515A | Polymer hydrogenation process | Chemistry; Metallurgy | 102 | Expired |
| USD466702S1 | Apertured nonwoven fabric | General | 100 | Expired |
| US4659754A | Dispersions of fibres in rubber | Chemistry; Metallurgy | 93 | Expired |
| US4503196A | Polymer hydrogenation process | Chemistry; Metallurgy | 86 | Expired |
| US7220252B2 | Inflatable dual balloon catheter | Human Necessities | 80 | Expired |
| USD481872S1 | Apertured nonwoven fabric | General | 78 | Expired |
| USD541052S1 | Nonwoven fabric | General | 74 | Expired |
| US5863970A | Epoxy resin composition with cycloaliphatic epoxy-functional siloxane | Electricity | 66 | Expired |
| US6314627A | Hydroentangled fabric having structured surfaces | Textiles; Paper | 64 | Expired |
| US5030662A | Construction material obtained from recycled polyolefins containing other polymers | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6381817B1 | Composite nonwoven fabric | Emerging Cross-Sectional Technologies | 62 | Expired |
| USD609922S1 | Nonwoven fabric | General | 61 | Expired |
| US7091140B1 | Hydroentanglement of continuous polymer filaments | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6349835B1 | Water treatment installation | Chemistry; Metallurgy | 57 | Expired |
| US4101050A | Filled-polystyrene laminates | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4394705A | Anti-static hose assemblies | Electricity | 52 | Expired |
| US4943616A | Living cationic polymerization process | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6347839B1 | Composite rim | Performing Operations; Transporting | 47 | Expired |
| US7893265B2 | Methods for preparing arene-BIS (dicarboximide)-based semiconducting materials and related intermediates for preparing same | Chemistry; Metallurgy | 47 | Active |
| US7928025B2 | Nonwoven multilayered fibrous batts and multi-density molded articles made with same and processes of making thereof | Emerging Cross-Sectional Technologies | 45 | Active |
| US6942711B2 | Hydroentangled filter media with improved static decay and method | Emerging Cross-Sectional Technologies | 45 | Expired |
| US8404844B2 | Perylene semiconductors and methods of preparation and use thereof | Emerging Cross-Sectional Technologies | 43 | Active |
| US6725512B2 | Imaged nonwoven fabric for cleaning applications | Textiles; Paper | 43 | Expired |
| US7931457B2 | Apparatus for producing sub-micron fibers, and nonwovens and articles containing same | Emerging Cross-Sectional Technologies | 42 | Active |
| USD622965S1 | Nonwoven fabric | General | 42 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.